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end.js
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end.js
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'use strict';
var test = require('tape');
var through = require('../');
// must emit end before close.
test('end before close', function (t) {
t.plan(4);
var ts = through();
var ended = false;
var closed = false;
ts.on('end', function () {
t.ok(!closed);
ended = true;
});
ts.on('close', function () {
t.ok(ended);
closed = true;
});
ts.write(1);
ts.write(2);
ts.write(3);
ts.end();
t.ok(ended);
t.ok(closed);
t.end();
});
test('end only once', function (t) {
t.plan(4);
var ts = through();
var ended = false;
ts.on('end', function () {
t.equal(ended, false);
ended = true;
});
ts.queue(null);
ts.queue(null);
ts.queue(null);
ts.resume();
t.equal(ended, true, 'is ended');
ts.end();
t.equal(ended, true, 'is still ended after end()');
ts.end();
t.equal(ended, true, 'is still ended after end() 2x');
t.end();
});
test('end with value', function (t) {
var ts = through(null, null, { autoDestroy: false });
var results = [];
ts.on('data', function (data) {
results.push(data);
});
ts.queue(123);
ts.queue(456);
ts.end('end');
t.deepEqual(results, [123, 456, 'end']);
t.end();
});